Explosive-engine.



PATBNTED SEPT. 8, 1908.

V. F. CARPENTER: EXPLOSIVE ENGINE.

APPLICATION FILED DEC. 21, 1907.

MEEJTWR VARNUM F. CARPENTER, OF CLEVELAND, OHIO.

EXPLOSIVE-ENGINE.

51 ecification of Letters Patent.

Patented s, rec-c.

Application filed December 21, 1907. Serial No. 97,527.

\ and (lo declare that the following is a full,

clean-end exact description of the invention, which will enable others skilled in the art to which it :ippertains to make and use the some.

My invention relates to explosive engines, end the invention consists in an engine adapted to be converted into either e twocycle or four-cycle engine, or from one to the other, at the will of the operator by meanso'r" n single velve, itll substantially as shown sml described and particularly pointed out in the claims.

} ln the scoonumnying (ll-swings, Figure l is n vertical sectional elevation of on engine of a marine pattern embodying the invention, tslien on line 23-17;, and 2 isaplain clever on or the machine at rig t angles Fig. '1, locking from the left. Fig. 3 is a. perspective view of the valve.

For the purposes of the present illustration of tlie invei'ition l have chosen a Well known and popular style or manufacture of marine kind or type from that shown, and to any arrangement thereof Wlictlier vertical or 110 'izontal, and stationary or portable. For example, I have planned its introduction into an engine for automobiles {mil general traction purposes, such as street curs one :11 like, and hence the invention. regarded as being practically broad as the art to w i it relates and being applicable to explosiv engines generally. ll ow, with this brow conception in view, we come to the present embollinient of the invention which coinprises a, cylinder C, a base 3 upon which the structure is erected, a piston P and a. cycle controlling and converting valve V. A. crank sliril't extends through hose 3, or, "more properly, between said base and the bottom portion of cylinder C, filldl'Oil R connects the creel; of said sneft with piston P. The Well of the cylinder is provided with the usual cooling jacket, and the engine has a. and air intake A at one side which discharges into the Well W Willllln'tll base or r tom of the cylinder Where admixture of the elements is effected, and a sullic' it com pression oi' the mixture occurs in this WEll to force the mixture orges forward in i o the e:-;

'plosion chamber before piston P. Exhaust for the products of explosion from her is by exit Gas, or the mixture from well o space ll plosion chamber through duct or 1 in which the cycle controlling valve located.

lloW, at this point in the description l pause to note sin tlltt by my invent on it is possible to i we either four cycle engine "Hill and taneo'us conversion from lo the o cording as either may )5 .vrant'wl given service, For ewmplc in 'L, with on automobile the in would be Worked as n l possi le (lei it iscs J-iole, ow grades as are travel ll 0 four-cvcle ed" ileenierl be"! r. convc it so ection i forincll we speed. to be me on expol opcrstor will e govern loans it i operet it) 1 e612. 96 rice the vale into loll Ora oi opt/rein,

tion and to this cntl the valve is me a. rod 4 mlntpled to sli 'l 9. i l" r. l'lv uncover -11; tukes tlie valve out of .lzOlll in Working rcluttci in F 2, and o en and close use.

rotation through sniu c' "run out tion the passage 3 isopen couo lmut rice constantly except 2; P during the stroli open or valveless 2' v form and there is explosion with forward stroke piston, being adept cl such stroke. fills the explos pressing and lo: 7 action m it retires in its 0 rose, :is 1 Waste products from the prec. I v A are swept out, more or less completely L rib or :rin 6 on the piston in front of inlet duct 3 causes the in flowing gas to be deflected to the forward or outer end of the explosion chamber, thus promoting clearance of the vitisted products by crowding them down to the exhaust port. Valve V is segmental in cross section an has a hub 7 by or through which it is secured to rod or shaft 4. Said roll is controlled for adjustinent of the valve to and from working position by lever L, which has a head 9 pivoted thereon and constructed to receive the headed end of rod -l rotsrily therein, thus providing for the rotation of said rod'ztnd the valve through gears and connections soon in Fig. 2, These involve she-ft J, which is supported at its ends in brackets or arms 10 and carries a bevel gear 1.2 below in mesh with bevel gear 13* on main shaft S, and a, bevel gear 14 on the other end which meshes with gesr 15 on. e sleeve 16 on the end of rod 4. The said rod is sliduble in said sleeve to enable the vslveto be moved longth vii'e out of position as to gas duct 3, but is so engaged in or with said sleeve as to be always rotated thereby, in any position of the valve, when the engine is running.

it will thus be seen that only s single valve is employed in the entire engine and it is used. to convert the'enginc from one cycle to the oth er, on d that otherwise no valves are used or needed. The piston controls the air and gas intake, causing it suction when it travels tor ard and closing the ducts 2 tl'iroug'h which these elements enter together when on the back or return stroke. In this instance the said elements are contained in We l W, but any other space, clnunher, or receptscle may be employed for this purpose and so also may any suitable mechanism be employed for opcrating, he valve, Whethe it proceeds initially 'l'roin shalt S or from some other rotating; or opening part.

.Vv hen the ginc runs on s tour-eye; ridlllstment of the valve there two down strokes of piston and the exhaust port is o erred twice before an explosion occurs. in t is operation there is compression of Whatever products of corolnistion remain in the cylinder alter the first down stroke, but

through exhaust E.

Whatever strokes of piston, or is power is absorbed in making this idle stroke is measurably compensated by the expansion of the compressed vitiated gases. When this occurs however, the clearsnce of said gas is more complete than when there is but one down stroke of the piston to clear the cylinder before another explosion occurs. The gears which. control the valve and the valve itself so constructed that the valve remains closed through alternate open only for every other SlfiOiiG. Obviously this ivorks a considerable saving in gas and at the some time leaves the engine with sullicient power, for ordinary or average conditions.

The Word gas in the claims has reference to the explosive mixture.

Whst I claim. is

1. An engine huving an explosion ohe mber and a piston therein, u duct tor the charge lending to said chamber, a rotetaliile valve in said due t, means to rotate said valve and open and close the some at alternate strokes of the piston and means to retire said valve bodily from said duct and leave the duct unobstructed, whereby e two cy le engine is obtained. l

2. A four cycle engine having an explosion chamber, a piston and shaft, and u was supply duct to said chamber, a rotatable valve in said duct, means to continuously rotate the valve While the engine is in operation, and means to retire the valve from said duct to obtain two-cycle operations.

3. A. four-cycle engine having a vertically disposed explosion chamber, at piston and it due] lending to the said chamber, s ZOtt. blc valve in said duct end time gesrsto rotate said valve once during two strokes of said piston, a shaft slidable in one ssid gears and having said valve n and a; lever to operate said shaft and said valve.

in testimony whereof I sign this s'gz-o tion in the presence of two Witnesses.

VARNUM F. GARl-llElilPltll.

lli tn csses l I it. Moses, M'. Fisnim. 

